Numerical analysis of bridge falsework Cuplok systems-Reference-Cited by-同舟云学术

Numerical analysis of bridge falsework Cuplok systems

Published:2019-03 Issue:3 Volume:172 Page:170-188
ISSN:0965-0911
Container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings
language:en
Short-container-title:Proceedings of the Institution of Civil Engineers - Structures and Buildings

Author:

André João¹^ORCID,Beale Robert²,Baptista António M.³

Affiliation:

1. Postdoctoral Research Fellow, Structures Department, National Laboratory for Civil Engineering, Lisbon, Portugal (corresponding author: )

2. Reader in Mechanical Engineering, Faculty of Technology, Design and Environment, Oxford Brookes University, Oxford, UK

3. Senior Research Officer, Structures Department, National Laboratory for Civil Engineering, Lisbon, Portugal

Abstract

Bridge falsework systems are one of the most common temporary structures used in the construction industry to support formwork during the construction of cast-in-place concrete bridges. This paper presents the results of advanced numerical studies of selected structural systems using a novel joint finite element and information gathered from an extensive experimental campaign of various types of joints commonly found in Cuplok falsework structures. Different hazardous scenarios identified as being critical to the structural performance of bridge falsework systems are analysed, such as ground settlements, bracing configurations and falsework systems using steel beam girders. For each considered hazardous scenario, structural behaviour and resistance are analysed and discussed. From the results, relevant practical information was obtained that can be used to reduce the risks associated with bridge falsework systems. For example, it was found that even a small value of isolated differential ground settlements could reduce the resistance of the system by more than 10%. In addition, for falsework systems using steel beam girders, it was found that inappropriate bracing of falsework towers could lead to a 50% reduction in system resistance.

Publisher

Thomas Telford Ltd.

Subject

Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jstbu.16.00082

Reference29 articles.

1. André J (2014) Determination of the Main Parameters Affecting the Performance of Bridge Falsework Systems. PhD thesis, Oxford Brookes University, Oxford, UK.

2. A survey of failures of bridge falsework systems since 1970

3. Recent advances and existing challenges in the design of bridge falsework systems

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1. Editorial;Proceedings of the Institution of Civil Engineers - Structures and Buildings;2019-03